@media (min-width: 768px) {
  .window-cover_con {
    display: none;
    position: fixed;
    z-index: 999999;
    padding: 39px 20px;
    left: 50%;
    top: 50%;
    background-color: #fff;
    border-radius: 4px;
    box-sizing: border-box;
  }
  .register-now {
    width: 618px;
    height: 408px;
    background-size: 100% 100%;
    border-radius: 0;
  }
  .register-now_bg {
    position: absolute;
    width: 100%;
    height: auto;
    top: 0;
    left: 0;
    z-index: -1;
  }
  .register-now_con {
    text-align: center;
    position: relative;
    width: 541px;
    padding: 42px 30px;
    margin-left: 20px;
    top: 0px;
    box-sizing: border-box;
    background: #fff;
    z-index: 2;
  }
  .register-now_title {
    padding: 0;
    margin-top: 0;
    margin-bottom: 38px;
    font-weight: bold;
  }

  .register-now_des {
    font-size: 18px;
    line-height: 2em;
    margin-bottom: 0;
  }
  .register-now_link {
    display: inline-block;
    margin-top: 22px;
    font-size: 18px;
    padding: 0 21px;
    height: 35px;
    line-height: 35px;
    background: #000;
    color: #fff;
    margin-left: auto;
    margin-right: auto;
  }
  .register-now .window-cover_con-close {
    width: 28px;
    background-color: #ddd;
    height: 28px;
    top: 5px !important;
    right: 5px !important;
    border-radius: 50%;
    opacity: 0.8;
  }
  .window-cover_con-close {
    display: inline-block;
    position: absolute;
    top: 10px;
    right: 10px;
    width: 34px;
    height: 34px;
    line-height: 34px;
    text-transform: uppercase;
    color: #606060;
    text-align: center;
    border: none;
    border-radius: 50%;
    background: none;
    cursor: pointer;
  }
  .closebtn-alert {
    background: url(../images/cancel_round.png) no-repeat center;
    display: block;
    width: 40px;
    height: 40px;
    position: absolute;
    right: 20px;
    font-size: 0;
  }
}
@media (max-width: 768px) {
.window-cover{
  width: 100%;
  text-align: center;
}
  .window-cover_con {
    display: none;
    position: fixed;
    z-index: 999999;
    padding: 20px 20px;
    left: 15px;
    top: 20%;
    background-color: #fff;
    border-radius: 4px;
    box-sizing: border-box;
  }
  .register-now {

    background-size: 100% 100%;
    border-radius: 0;
  }
  .register-now_bg {
    position: absolute;
    width: 100%;
    height: auto;
    top: 0;
    left: 0;
    z-index: -1;
  }
  .register-now_con {
    text-align: center;
    position: relative;
    padding: 20px 30px;
    top: 0px;
    box-sizing: border-box;
    background: #fff;
    z-index: 2;
  }
  .register-now_title {
    padding: 0;
    margin-top: 0;

    font-weight: bold;
  }

  .register-now_des {
    font-size: 12px;
    line-height: 2em;
    margin-bottom: 0;
  }
  .register-now_link {
    display: inline-block;
    margin-top: 22px;
    font-size: 18px;
    padding: 0 21px;
    height: 35px;
    line-height: 35px;
    background: #000;
    color: #fff;
    margin-left: auto;
    margin-right: auto;
  }
  .register-now .window-cover_con-close {
    width: 28px;
    background-color: #ddd;
    height: 28px;
    top: 5px !important;
    right: 5px !important;
    border-radius: 50%;
    opacity: 0.8;
  }
  .window-cover_con-close {
    display: inline-block;
    position: absolute;
    top: 10px;
    right: 10px;
    width: 34px;
    height: 34px;
    line-height: 34px;
    text-transform: uppercase;
    color: #606060;
    text-align: center;
    border: none;
    border-radius: 50%;
    background: none;
    cursor: pointer;
  }
}
.closebtn-alert {
  background: url(../images/cancel_round.png) no-repeat center;
  display: block;
  width: 40px;
  height: 40px;
  position: absolute;
  right: 20px;
  z-index: 99;
  font-size: 0;
}
